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Basic Addition Lesson 10: Number 10

Here's an easy example:

10
+
1
=
11
 
                    
+
  
=
                      
 
   MediumPurple Box   DarkCyan Box   Maroon Box   DarkBlue Box   SlateBlue Box   SandyBrown Box   SpringGreen Box   DarkOrchid Box   Chartreuse Box   CornflowerBlue Box  plus     Olive Box  equals     MediumPurple Box   DarkCyan Box   Maroon Box   DarkBlue Box   SlateBlue Box   SandyBrown Box   SpringGreen Box   DarkOrchid Box   Chartreuse Box   CornflowerBlue Box   Olive Box

We start with ten boxes, add one box, and now have eleven boxes.


Here's another example:

10
+
2
=
12
 
                    
+
    
=
                        
 
   Cyan Box   PowderBlue Box   LawnGreen Box   DarkSlateBlue Box   DodgerBlue Box   Tan Box   Violet Box   ForestGreen Box   DarkKhaki Box   Coral Box  plus     Wheat Box   DeepSkyBlue Box  equals     Cyan Box   PowderBlue Box   LawnGreen Box   DarkSlateBlue Box   DodgerBlue Box   Tan Box   Violet Box   ForestGreen Box   DarkKhaki Box   Coral Box   Wheat Box   DeepSkyBlue Box

We start with ten boxes, add two boxes, and now have twelve boxes.


Try this problem.

10
+
3
=
 
                    
+
      
=
                          
 
   Yellow Box   Brown Box   Aquamarine Box   MediumVioletRed Box   Sienna Box   RosyBrown Box   DarkGreen Box   Goldenrod Box   Pink Box   Gold Box  plus     MediumPurple Box   DarkCyan Box   Maroon Box  equals     Yellow Box   Brown Box   Aquamarine Box   MediumVioletRed Box   Sienna Box   RosyBrown Box   DarkGreen Box   Goldenrod Box   Pink Box   Gold Box   MediumPurple Box   DarkCyan Box   Maroon Box

We start with ten boxes, add three boxes, and now have thirteen boxes.


In order to do basic addition, you must memorize some equations but fear not: FoxyMath will help you! When you are finished with this lesson, you will know the following equations:

10 + 1 = 11
10 + 2 = 12
10 + 3 = 13
10 + 4 = 14
10 + 5 = 15
10+ 6 = 16
10 + 7 = 17
10 + 8 = 18
10 + 9 = 19
10 + 10 = 20
10 + 11 = 21
10 + 12 = 22


The following exercise will help you learn the above equations and what they mean. Please take your time: take whatever time you need to learn the material.

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